DE1176168B - Track tamping machine on which a track lifter is arranged - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Boarding school Kl .: EOIb

German class: 19 a -27/16

Number: 1176 168

File number: P 26190 V / 19 a

Filing date: December 10, 1960

Opening day: August 20, 1964

It is already known the immersion depth of the tamping tools in a track tamping machine to be changed during operation. This measure is intended, among other things, to avoid the disadvantages that result from a constant immersion depth when the track has to be raised by a relatively large height, for example in the case of considerable changes the rail position. In such a previously known track tamping machine, for example, a Support device arranged between the height-adjustable tool carrier and the chassis frame independent of the lifting and lowering device for the tool carrier in one through the minimum or maximum required immersion depth of the tamping tool ends limited area adjustable and detectable.

If the height of a track is to be improved, each individual sleeper by one a certain amount is to be brought from its actual position to its target position, then difficulties arise, if you also always consider the immersion depth of the tamping tools with these varying lifting dimensions wants to change again in order to achieve a special quality of the under-stuffing. Controlling this varying immersion depth is particularly difficult and can cause undesirable time losses, if the lifting measure itself for each individual threshold depending on the respective difference between the target and actual position of this threshold is controlled more or less largely automatically will.

The invention has for its object to overcome these difficulties and to ensure that for each individual sleeper, an immersion depth of the tamping tools corresponding to the respective degree of elevation is guaranteed.

The solution to this problem is based on a track tamping machine and its tamping tools dip their lower ends into the ballast bed and on which a track lifter is arranged.

According to the invention, such a machine is provided with a height-adjustable device for limiting the immersion depth of the tamping tools, and means are arranged to automatically adjust this device depending on the respective lift of the track lifter so that with a higher stroke of the track lifter immerse the tamping tools deeper. By means of these measures, the depth effect of the tamping tools is sensibly adapted to the individual requirement for the individual raised sleeper, and thus the track tamping machine to which a track lifter is attached
is arranged

Applicant:

Franz Plasser track construction machines, Vienna

Representative:

Dipl.-Ing. H. Seiler, Berlin 19

and Dipl.-Ing. H. Stehmann,

Nuremberg 2, Essenweinstr. 4-6, patent attorneys

Named as inventor:

Franz Plasser,

Ing.Josef Theurer, Vienna

Claimed priority:

Austria from December 31, 1959 (A 9511/59)

Durability of the stuffing result significantly improved.

In application to a track tamping machine with a height-adjustable tool carrier for the Stuffing tools is provided according to a further invention feature that the device for Limitation of the immersion depth of the tamping tools a hydraulically actuated, under the Has tool carrier arranged support piston, which is mounted in a on the machine frame Cylinder is adjustable in height and forms a lower support for the tool carrier.

Finally, within the scope of the invention, this track tamping machine, provided its track lifter by means of a hydraulically actuated piston-cylinder drive is to be actuated, configured in this way be that the cylinder of the track lifter is connected to the cylinder of the support piston in such a way, that the downward movement of the support piston for the purpose of adjusting the immersion depth of the stuffing tools hydraulic fluid displaced the lifting of the track from the lower cylinder chamber of its cylinder causes.

The drawing shows an embodiment of a track tamping machine according to the invention partly in side view, partly in longitudinal section.

In the drawing, 1 is the chassis frame

the track tamping machine, which is in a track section that is to be lifted and tamped under protruding part the guide pillars 2

41 »657/104

for the height-adjustable tool carrier 3. The whole machine is on rails 4 of the The tracks can be moved, which in turn are stored on the cross sleepers 5.

A mounted on the tool carrier 3 eccentric shaft 6 offset via eccentric arms 7 as Rocker arm trained tamping tools 8 in vibration. At point 9 these tools 8 are on an adjusting device of the usual type articulated in order to be able to move them in opposite directions. At the bottom At the ends of the tamping tools 8, tamping plates 10 are arranged, which are placed directly on the to be compacted Acting ballast.

To regulate the depth of immersion of the tamping tools 8 is used under the underside of the tool carrier 3 on the lower spar of the chassis frame 1 superimposed cylinder 11, the one hydraulically can be acted upon piston 12 receives, on the support of the in a known manner Tool carrier 3 is supported in each case in its lowest position. A supply line 13 supplies the upper one Chamber of the cylinder 11 with hydraulic fluid. This supply line is via a slide 14 and a Line 15 is connected to the pump 16, which is via a suction line 17 from the storage container Tool carrier 3 designed for oil is supplied. An overflow line 18 with a pressure relief valve 19 and idle lines 20 ensure that a certain maximum pressure is not in the line system is exceeded.

The other, lower chamber of the cylinder 11 of the limiting device is connected to a line 21 with a shut-off valve 22 with the lower chamber of the lifting cylinder 23 in connection. In this lifting cylinder 23, the piston 24 slides, which is under pressure from above by a return spring 26. At the The lower end of the piston rod 24 'is a track clamp 25 or another one for gripping the rail suitable gripper arranged.

The operation of the illustrated track tamping machine is roughly as follows:

As soon as the mobile track tamping machine has reached a position in which the tamping tools are located on both sides of a cross-sleeper that is to be raised and tamped under, the track clamp detects 25 the rail to be lifted 4. The cylinder 11 of the limiting device is now in the upper chamber So much hydraulic fluid is supplied via line 13 that it is displaced from the lower chamber Pressure fluid via line 21 into the cylinder 23 of the piston-cylinder drive of the The track lifter arrives and there causes the desired lifting of the track.

The further supply of pressure fluid is abruptly prevented by the shut-off valve 22, whereby the piston 24 in the cylinder 23 and the piston 12 in the cylinder are fixed in their respective positions will. The lowering tool carrier 3 now sits on the piston at the beginning of the tamping work 12, and the tamping tools 8 therefore dip more or less deeply into the ballast bed; was the necessary lift large, then the piston 24 is relatively high up and the piston 12 of the limiting device accordingly deep down, so that the tamping tools 8 dip deep, if, on the other hand, the lift was small, the piston 24 has lifted only a little and the piston 12 only slightly lowered so that the tamping tools are only slightly immersed.

To continue moving the machine, the track clamp 25 and the shut-off valve 22 are first released opened, whereupon the return spring 26 moves the piston 24 to the track clamp 25 in the lower starting position and the piston 12 of the limiting device thus simultaneously in the uppermost position presses. The pressure fluid flowing back via line 13 passes through the meanwhile adjusted Slide 14 and lines 20 back into the storage container.

The valve 22 and the track clamp 25 can also some time before the end of the tamping are opened, which then with a sufficiently strong design of the return spring 26 or arrangement a further spring in the cylinder 11, a gradual upward migration of the tool carrier 3 can be achieved can. This type of stuffing results in a particularly favorable profile below the threshold forming compacted ballast.

Claims (3)

Patent claims: 1. Track tamping machine, the tamping tools of which dip their lower ends into the ballast bed and on which a track lifter is arranged, characterized in that it is equipped with a device which is adjustable in height is provided for limiting the immersion depth of the tamping tools and that means are arranged are to this facility depending on the respective lift of the track lifter automatically to be adjusted in such a way that the tamping tools plunge deeper with a higher lift of the track lifter. 2. Track tamping machine according to claim 1 with a height-adjustable tool carrier for the Tamping tools, characterized in that the device for limiting the immersion depth of the tamping tools (8) a hydraulically actuatable, arranged under the tool carrier Has support piston (12) which is adjustable in height in a cylinder (11) mounted on the machine frame and a lower one Forms support for the tool carrier. 3. Track tamping machine according to claim 2, the track lifter of which by means of a hydraulically to be acted upon Piston-cylinder drive is to be operated, characterized in that the Cylinder (23) of the track lifter is connected to the cylinder (11) of the support piston (12) in this way. that when the support piston moves downwards for the purpose of adjusting the immersion depth of the stuffing tools the hydraulic fluid displaced from the lower cylinder chamber of its cylinder (11) causes the track to be raised. Considered publications:
German Auslegeschriftcn No. 1 000 417, 041 994;
Austrian patent specifications No. 186 663, 204 066. 1 sheet of drawings 409 657/104 8.64 © Bur.desdruckerei Berlin